Gu Heng did not reply to the second anonymous message.
He first moved the message back to his personal archive page.
The same passage had first appeared in an anonymous private message, then became a cropped preview on Kushida's terminal.
That proved the content was circulating.
It could not prove the two appearances came from the same person.
Gu Heng divided the page into three layers.
The anonymous channel retained only the original text, arrival time, and source status.
The cross-group citation section displayed only content that had been released.
The Class D shared page accepted only verified external facts.
The three layers could each see part of the others.
Yet none could verify the source for another.
Gu Heng added a record beneath the message.
`Content: Kei Karuizawa knows who was the first person in Rabbit Group's second round to mention their class`
`Source: missing; Status: unanswered`
He then sent the handling guidelines to Yukimura.
"Don't put Karuizawa on the Class D shared page for now."
Yukimura looked up.
"This message could be true."
"Could be doesn't mean it can be forwarded."
"Then what do we investigate?"
Gu Heng placed the external records of Rabbit Group and Snake Group side by side.
"Find out who looked at her after the message appeared."
Yukimura paused.
"Not investigate her directly?"
"She has already been written into the message."
"Asking her again would only help the other side forward it a second time."
Gu Heng closed the Snake Group name list.
Someone passed by the entrance to the public lounge.
Karuizawa walked between two girls.
She noticed the citation alert at the edge of the public screen first.
She neither stopped nor turned back to check who had sent it.
She led the two girls toward the cafeteria, but paused for half